On Tue, 2017-09-19 at 16:02 -0700, David Miller wrote: > From: Eric Dumazet <eduma...@google.com> > Date: Mon, 18 Sep 2017 12:07:26 -0700 > > > When rate of netns creation/deletion is high enough, > > we observe softlockups in cleanup_net() caused by huge list > > of netns and way too many rcu_barrier() calls. > > > > This patch series does some optimizations in kobject, > > and add batching to tunnels so that netns dismantles are > > less costly. > > > > IPv6 addrlabels also get a per netns list, and tcp_metrics > > also benefit from batch flushing. > > > > This gives me one order of magnitude gain. > > (~50 ms -> ~5 ms for one netns create/delete pair) > > I like it. > > Please address the feedback about using skb_put_data() and > resubmit.
Sure, will also remove a spurious // comment I accidentally left in patch 7/7.
